Automobile-bumper.



F. LEDERER.

AUTOMOBILE BUMPER.

APPLICATION FILED 0cT.2e. I9Is.

1,216,832. 7 Patented Feb. 20, 1917;

I I ll III/I14 111:! Ill-III:

VENTUR I 1i A T TORNQYS UNITED sTATEs PATEN OFFICE.

rnmnmon tenants, or MILWA KEE; WISCONSIN. Assn: NOR or ONE-HALF'TO BENJAMIN 1). ZIMMEBMANN, or- CHICAGO, nmmors.

To all whom it may concernr Be it known that I, Fnrnnnrorr Lni'mnnn, a

citizen of the United States, and resident of drawings, which are a part of this specificw tion.

This invention relates to automobile bumpers.

The invention is designed more particu. larly to provide a new and improved means for attaching the bumper to an automobile. In the present construction of automobiles there is a mud. apron located at the front of the machine and connected at its sides to the side bars or side frame members of an automobile and with the usual construction of.

bumper brackets and their attaching means it is necema'ry to drill or cut holes in the mud apron to attach the bumper in place.

In the present construction the bumper 1s readily attached to the automobile without the necessity of drillingor cutting holes in the nud apron or in the side bar preparatory to putting on the bumper and avoiding any weakening of the frame by drilling or cutting holesthcrethrough.

The invention is further designed to pro- V ride a one piece bumper bracket with fastoning means whirhmay be adjusted so asto adjust the bracket and bumper bar :in

properhorimntal position regardless of the variations in curvature and depth of the i a front side bars to which the bumper may be attached. I V

The invention further conslsts 1n the several features hereinafter set forth and more particularly defined by claims at the conclu sion hereof.

In the drawings: v Figure L sa plan 'VJBVV of the bumper showing it applied to the front portion of the side bars of an automobile;

(Fig. '2 is a detail side view ofthe device,

parts being broken vaway and parts being shown in section;

AUTOMOBILE-BUMPER.

Specification of-Iietters Patent.

r: itented Feb. 20,1917.

Application filed October 26,1916. Serial No. 127 81.

Fig. 3 is a sect on taken on the line 3-3 ofFig.2; H

Fig. 4 is a detail View of the bracket showing its attachment to the side bar parts being shown in section and parts being broken away'; a Fig. 5 is a vice similar to Fig. 4 showing the bracket attached to a side bar of different curvature fro'n that shown in Fig. 4:.

In general the bumper comprises a bumper bar 6, supp'orting brackets 7, and means for yieldin gly connecting said bar to said brackets.

The means for 'yieldingly connecting the bar 6 to the bratk ets 7 consists of slidable rods or plungers 3 having portions 9 and IQ fitting within the tubular portion 11 of the brackets 7, an adjustable connection between the rods 8 andG, and a spring 12 surrounding the portion'i.0 of the rod 8 and. interposed between the shouldered portion 9' of said rod andv an annular flange 13 in the tubular portion 11., the outward'movement of. the rods 8 being limited by pins 1.4.

The adj ustabl: connection between the rods 8 and the bar 6 for adjusting the; bumper to difi'ere nt widths of frame and the i type of bar may 1 e of any desired form but'l prefer to use a channel bumper bar provided-' with inwardly ntending flanges 15 which are elampedto 01' e arms 8 by'means of m'nut lot the flanges 1 5 .mda nut 17 having threaded engagement with the threaded gition 18 of the arm, tl'efianges 15 bein c amped between the nuts 15 and 16. This manner of adj ustably cor meeting the bar to the arms 16 formed on the arm iidjacient the outside 3 struction due to the connection being vlo- (rated at the rear of the bar.

In thedrawiu'gs I have illustrated the usual-form of ti e flfront end of the automobile with the for wardlyprojecting side bars 19 and the inet il' gn iud apron 20fdisposed tlierebetween an; l"c 'onnected thereto and the principal objectof this invention is the 40 a Y of theportion meansfor readily attaching the bumper to .less of'the curvature and depth of the side I automobiles of this construction. 2 ars.

hls means consists'of the means for clamping said brackets to the forward portion of the side bars 19 without the necessity of drilling or cutting holes in said side bars or of drilling the mud apron preparatory to securing the bumper in position.

Each b l adapted to rest against'one side, preferably I in the the outer side of for securing said bracket to the side bar consists of ing hooked ends 23 adapted to engage the flanges 24 ofthe side bar, tively' assing through apertures 25 and26 racket and having threaded ends' 2' for receiving nuts-28 to-clamp'the'parts. together.- The upper bolt hasa point 29 at the end of the hook so that when its nut 28 is tightened up to clamp the bracket in'place,

saidpointed hook will pierce the mud apron 20 adjacent the side bar 19 e'same; -as Shown in Fig. 3 so that it is not necessary to drill orcut the mud apron on of the brackets; I I

'le no provision for the adjustment of the bolts 22 need be made for the same type of automobiles or automobiles-in which .the

that thebrackets ma ,4;

with an eccentrically disposed aperture 32' bracket by meansofa tooth circular lock pl side bars have the s'ame'degree of curvatureends 'provision'has been' v position O f the lower bolt 22 to adapt the bracket to side frame members of'varyingcurvature and varying at their forward made for varying the means consists of an adjustable ate'30 adapted to be seated in either of the circular recesses 31 on the sides 21' of the I trically disposed with respect; to the aperture 26, there beingftwo recesses in order depth. This or left side of the used on either the rig t being provided vehicle, said. circular "plate through which the lower bolt 22 passes, The'lock plate 30 issecured in different positions'of'adjustment with respect to the engagement between the. p arts,. there being a plurality of radially disposed teeth 33 on the bracket? wlthin the recesses 31 thereof adapted to interlock with the lock plate. of the plate 30 By. adjusting the position with respect to thebracket 7 the Dosition'of the lower bolt 22 may be n to the position-'of the, to the eccentric dispogeition of said lower bolt in said plate and in varied with respect upper bolt 22 owing this way thebracket and be! may be a d justed topmpe brackets 7 and or cutting holes in -mob1les having a mud apron.

said bolts respecto pierce the mud and pass-through and front mud apron r as bracket and concen- I be interchangeably vided, with brackets,

one of said bolts to permit said brackets to n'tal position regardbar may be used it will be understood that While the horizontal adjustment of the the pointed hook bolt maybe employed on the'bracket injconnection with other fastenlng 'means and the device used on auto- \Vith the construction of buinlper abovedescribed the shock of impact wil be transmitted from the bar and brackets through the fastening means tothe frame of the aut'omobile, the springs serving to absorb the lighter shocks. I lVhatIclaimas my invention is: L'The combination, .withthe side bars.

and "f1-Ontjmud apron of an automobile,

of an automobile bumper having bumper brackets, and means for clamping eachof said brackets to the'side bar including a clamping member having a art extending through the mud apron,-said ment of the brackets .to said side bar.

2. The combination, with the sidebars of an automobile, of an automobile bumper provided with bumper brackets, and means] for said brackets to piercing the mud apron duri-n It)he attachment. of the brackets to said side 3. The combination, with bars of an "automobile, of a vided with brackets, and means comprising hooked bolts for'engagin the flanges. of said bars to clam ,said firackets thereto, one of'said bolts iving a pointed end to pierce the mudapro'n during the-attachment of the brackets to said sidebar. A 4. The combination, with the side channel bars of an automobile, of a bumper promeans comprising part adapted apron during the attach-- clamping said side bars including a pointed hooked member for engaging the side bar and the side channel v bumper prohooked bolts for engaging said side bars to secure'the brackets thereto, one of said bolts having fa'pointed end to pierce the mud apron during the attachment of the brackets to said side bar, and means for with respect to the other bars of varying curvatures.

5. The "comb nation, with the side bars of an automobile, ,of a bumperprovided' with corresponding; teeth .34 on brackets, upper andlower clampingmembers for securing said. bar, a circular lock- I plateg adjustably secured to'sa'id bracket,

said lower cla'mp'in g member. I .6. The combination, V an automobile, of a bumper provided with be attached to side v 116 adjusting I brackets to' saidi side brackets, upper and lower clamping bolts for removably clamping said brackets to said side bar, each of said brackets having a circular aperture in the lower portion thereof through which said lower clamping bolt passes, a circular lock plate having an adjustable interlocking engagement with said bracket adjacent said aperture and pro vided with an eccentrically disposed everture through which said lower clamping 10 bolt passes whereby the po sition of said bolts may be varied to permlt iaid bracket to be attached to side bars of varying curvatures and depths.

In testimony whereof aiiik i=5- ture.

FRIEDRIC H LEDERER. 

